Lubricating oil or grease.



UNITED STATES PATENT OFFICE.

JOHN HENRY MACKLE, OF WATERVLIET, NEW YORK.

LUBRICA'IING OIL OR GREASE.

No Drawing.

To all whom it may concern:

Be it known that I, JOHN-H. MAOKLE, a citizen of the United States, and resident of the town of Watervliet, county of Albany, State of New York, have invented certain new and useful Improvements in Lubricating Oils or Greases, of which the following is a specification.

Since the introduction of hydrocarbon and other high speed and high temperature engines there has been a desire to obtain a suitable lubricating agent. The requirements are however of such'a rigid character that when submitted to the test'even the best lubricants have been found wanting. The principal causes of failure are that lubricating oils will not withstand the required .heat Without becoming themselves affected with the heat'to such an. extent that they smoke, burn and carbonize and therefore even though their presence is quite necessary it is also quite ob]ectionable.

My invention consists of an oil that has been found satisfactory even after the most rigid test, and one that although providing an entirely satisfactory lubrication does so without introducing into the cylinder of the engine readily deposited carbons that are later to be discharged as'smoke, or retained and deposited on the valves, the piston and the interior of the cylinder.

My invention consists of blending certain oils, that are high in lubricating qualities but lowin carbon and treating .the oils so as to remove any impurities that might be contained therein.

In the best working of my invention I have selected cotton-seed oil and castor oil mixing them in about the following proportions: cotton-seed oil 85%, castor oil 15%. I place the oils together in an open receptacle preferably of copper. I then heat the receptacle and continue it subject to the heat until the mixture ceases to foam or boil. I then allow it to partially cool while sedimentation takes place, and after. the impure matter has been boiled off or deposited with in the receptacle by reason of this pre- Speeifieation of Letters Patent;

Patented July 18', 1916.

Application filed October 17, 1914. Serial No. 867,090.

oxidization I draw off the pure oil, cool it to a proper temperature and it is ready for use. I have found th'at insubmitting the mixtures of oils toheat I can obtain any desirable degree of siccativeness but I have also found to obtain a heavy or light oil it is better to increase orv decrease the perburn but I have found that it will stand a very severe heat, the flash, test being greater than that'of either of the oils taken independently.

I believe that it would be quite possible to produce an oil having some of the characteristics of my oil by merely mixing certain proportions "of castor oil and cotton-seed oil without heating and with only ordinary sedimentation or filtration. Such an oil would, however, be of an inferior quality and would not'contam some of the most imcompound. Having carefully and fully described my invention what I claim and desire to secure by. Letters Patent is:

A lubricating oil which consists of cottonseedoil 85% and castor oil 15% which mixture has been heated to boil off or deposit the impure matter or sediment and decanted for use as herein specified.

Signed at New York city, in the county of New York and State of New York this 6th day of October 1914:.

JOHN HENRY MAGKLE.

Witnesses:

ALrRnn T. GORMAN, ARTHUR PHELPS MARR.

' portant characteristics of my more perfect 

